20100524245 has 4 divisors (see below), whose sum is σ = 24120629100. Its totient is φ = 16080419392.

The previous prime is 20100524239. The next prime is 20100524261. The reversal of 20100524245 is 54242500102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2036626641 + 18063897604 = 45129^2 + 134402^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100524245 - 2³ = 20100524237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2010052420 + ... + 2010052429.

It is an arithmetic number, because the mean of its divisors is an integer number (6030157275).

Almost surely, 2^20100524245 is an apocalyptic number.

It is an amenable number.

20100524245 is a deficient number, since it is larger than the sum of its proper divisors (4020104855).

20100524245 is an equidigital number, since it uses as much as digits as its factorization.

20100524245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020104854.

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 20100524245 in words is "twenty billion, one hundred million, five hundred twenty-four thousand, two hundred forty-five".